CAJ | 학술논문

对准噶尔盆地东部基础资料进行分析,研究了中—下侏罗统西山窑组和八道湾组煤层分布特征、煤岩煤质、储层物性及等温吸附特性、含气性,煤层气成因类型及成藏条件等,预测了准噶尔盆地东部煤层气勘探潜力.结果表明,准噶尔盆地东部侏罗系煤层分布广泛、厚度大,煤岩煤质较好(灰分、水分含量低,相对富含镜质组),煤储层物性较好、吸附性能为中等—差,煤层气资源丰富、成藏条件较好,勘探潜力巨大.根据建立煤层气资源丰度、煤层厚度、气含量、吸附饱和度、煤层原始渗透率、构造发育程度及水文地质条件参数建立选区评价标准,对工区煤层气有利区进行筛选,优选了准东乌鲁木齐—大黄山、沙帐、白家海地区为煤层气勘探的有利目标区域,合计面积达2630km2,合计资源量3000×108m3,具有较大的勘探潜力.
대준갈이분지동부기출자료진행분석,연구료중—하주라통서산요조화팔도만조매층분포특정、매암매질、저층물성급등온흡부특성、함기성,매층기성인류형급성장조건등,예측료준갈이분지동부매층기감탐잠력.결과표명,준갈이분지동부주라계매층분포엄범、후도대,매암매질교호(회분、수분함량저,상대부함경질조),매저층물성교호、흡부성능위중등—차,매층기자원봉부、성장조건교호,감탐잠력거대.근거건립매층기자원봉도、매층후도、기함량、흡부포화도、매층원시삼투솔、구조발육정도급수문지질조건삼수건립선구평개표준,대공구매층기유리구진행사선,우선료준동오로목제—대황산、사장、백가해지구위매층기감탐적유리목표구역,합계면적체2630km2,합계자원량3000×108m3,구유교대적감탐잠력.
We analyzed the basis data of eastern Junggar Basin, probed into the distribution characteristics of coal seam, coal rank, reservoir property and isothermal adsorption property, gas-bearing property, CBM genetic type and reservoir forming conditions, and predicted the exploration potential of CBM in the area. Results showed that the Jurassic coal bed was widely and thickly distributed in eastern Junggar basin, with better coal rank ( low content of ash and moisture and ric-her vitrinite) , better reservoir property, medium-poor adsorption property, abundant CBM resources and better reservoir forming conditions, and huge exploration potential. According to CBM abundance, thickness, gas content, adsorption satu-ration, primary permeability of coal seam, structure development degree, and parameters of hydrogeologic conditions, we formulated the standard for zone selection and evaluation, selected favorable CBM zones in the work area, and determined that Urumqi-Dahuangshan, Shazhang, and Baijiahai areas in eastern Junggar Basin were favorable targets for CBM explora-tion, with total acreage being 2630 square kilometers and total resources of 320 billion cubic meters. They have greater ex-ploration potential.